The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 15, 2015
Filed:
Dec. 12, 2012
Applicants:
Vinit Chilekar, Tervuren, BE;
Hartwig Voss, Frankenthal, DE;
Jelan Kuhn, Heidelberg, DE;
Ann DE Colvenaer, Wommelgem, BE;
Andreas Brodhagen, Tiefenthal, DE;
Inventors:
Vinit Chilekar, Tervuren, BE;
Hartwig Voss, Frankenthal, DE;
Jelan Kuhn, Heidelberg, DE;
Ann De Colvenaer, Wommelgem, BE;
Andreas Brodhagen, Tiefenthal, DE;
Assignee:
BASF SE, Lugwigshafen, DE;
Primary Examiner:
Int. Cl.
CPC ...
B01D 11/02 (2006.01); B01D 61/24 (2006.01); C07C 41/38 (2006.01); B01D 11/04 (2006.01);
U.S. Cl.
CPC ...
B01D 61/246 (2013.01); B01D 11/0288 (2013.01); B01D 11/0292 (2013.01); B01D 11/0415 (2013.01); B01D 61/243 (2013.01); C07C 41/38 (2013.01);
Abstract
The invention relates to a process for working-up a reaction mixture () comprising polyetherol and dissolved alkali metal comprising catalyst, wherein at least alkali metal ions of the dissolved alkali metal comprising catalyst are partially or completely removed from the mixture by a membrane separation process, the process comprising following steps: